Enlarge / The 3.32 million-year-old foot from an Australopithecus afarensis toddler from different angles on the left, next to the fossil remains of an adult Australopithecus foot on the right. Credit: Jeremy DeSilva & Cody Prang (credit: Jeremy DeSilva and Cody Prang) Early hominins’ four smaller toes had adapted to bipedal walking by around 4.4 […]
